<template>
    <div class="goodsinfo-container">

        <transition 
        @before-enter="beforeEnter"
        @enter="enter"
        @after-enter="afterEnter">
            <div class="ball" v-show="ballFlag" ref="ball"></div>
        </transition>

        <div class="mui-card">
            <div class="mui-card-content">
                <div class="mui-card-content-inner">
                    <swiper :lunbotuList="lunbotu" :isfull="false"></swiper>
                </div>
            </div>
        </div>

        <div class="mui-card">
            <div class="mui-card-header">{{goodsinfo.title}}</div>
            <div class="mui-card-content">
                <div class="mui-card-content-inner">
                    <p class="price">
                        市场价：<del>{{goodsinfo.market_price}}</del>&nbsp;&nbsp;销售价：<span class="now_price">{{goodsinfo.sell_price}}</span>
                        <p>购买数量：<numbox @getCount="getSelectedCount" :max="goodsinfo.stock_quantity"></numbox></p>
                        <p>
                            <mt-button type="primary" size="small">立即购买</mt-button>
                            <mt-button type="danger" size="small" @click="addToshopCar">加入购物车</mt-button>
                        </p>
                    </p>

                </div>
            </div>
        </div>

        <div class="mui-card">
            <div class="mui-card-header">商品参数</div>
            <div class="mui-card-content">
                <div class="mui-card-content-inner">
                    <p>商品货号：{{goodsinfo.goods_no}}</p>
                    <p>库存情况：{{goodsinfo.stock_quantity}}件</p>
                    <p>上架时间：{{goodsinfo.add_time | dateFormat}}</p>
                </div>
            </div>
            <div class="mui-card-footer">
                <mt-button type="primary" size="large" plain @click="goDesc(id)">图文介绍</mt-button>
                <mt-button type="danger" size="large" plain @click="goComment(id)">商品评论</mt-button>
            </div>
        </div>

    </div>
</template>
<script>
import swiper from '../subcomponents/swipe.vue'
import numbox from '../subcomponents/goodsinfo_numbox.vue'
export default {
    data(){
        return{
            id : this.$route.params.id,
            lunbotu : [],
            goodsinfo:{},
            ballFlag:false,
            selectedCount: 1
        };
    },
    created(){
        this.getLunbotu();
        this.getGoodsInfo();
    },
    methods:{
        getLunbotu(){
            this.$http.get('api/getthumimages/'+this.id).then(result=>{
                if(result.body.status===0){
                    result.body.message.forEach(item=>{
                        item.img_url = item.src;
                    });
                    this.lunbotu = result.body.message;
                }
            });
        },
        getGoodsInfo(){
            this.$http.get('api/goods/getinfo/' + this.id).then(result=>{
                if(result.body.status===0){
                    this.goodsinfo = result.body.message[0]
                }
            })
        },
        goDesc(id){
            this.$router.push({name:"goodsdesc",params:{id}})
        },
        goComment(id){
            this.$router.push({name:"goodscomment",params:{id}})
        },
        addToshopCar(){
            this.ballFlag = !this.ballFlag;
            var goodsinfo = {
                id:this.id, 
                count:this.selectedCount, 
                price:this.goodsinfo.sell_price,
                selected:true
            };
            // console.log(this.selectedCount)
            this.$store.commit("addToCar",goodsinfo)

        },
        beforeEnter(el){
            el.style.transform = "translate(0,0)";
        },
        enter(el,done){
            el.offsetWidth;

            const ballPosition = this.$refs.ball.getBoundingClientRect();
            const badgePosition = document.getElementById('badge').getBoundingClientRect();
            const xDist = badgePosition.left - ballPosition.left;
            const yDist = badgePosition.top - ballPosition.top;

            el.style.transform = `translate(${xDist}px,${yDist}px)`;
            el.style.transition = "all 0.5s ease";
            done();
        },
        afterEnter(el){
            this.ballFlag = !this.ballFlag; 
        },
        getSelectedCount(count){
            this.selectedCount = count;
            console.log(this.selectedCount);
        }

    },
    components:{
        swiper,
        numbox
    }
};
</script>
<style lang="scss" scoped>
.goodsinfo-container{
    background-color: #eee;
    overflow: hidden;

    .now_price{
        color: red;
        font-size: 16px;
        font-weight: bold;
    }
    .mui-card-footer{
        display: block;
        button{
            margin: 10px 0;
        }
    }
}
.ball{
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: red;
    position: absolute;
    z-index: 99;
    top:390px;
    left: 146px;    
}
</style>

